Mathematics · 2026
JEE Main · 6 April 2026, Shift 1 · Q8
If the coefficients of the middle terms in the binomial expansions of (1+α x)^26 and (1-α x)^28, α ≠ 0, are equal, then the value of α is:
If the coefficients of the middle terms in the binomial expansions of $\displaystyle (1+\alpha x)^{26}$ and $\displaystyle (1-\alpha x)^{28}, \alpha \neq 0$, are equal, then the value of $\displaystyle \alpha$ is:
Official answer
From NTA’s final answer key for this paper.
(4)
$\displaystyle \frac{7}{27}$
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JEE Main 2026 Mathematics question, with the answer from NTA’s final answer key. Where our answers come from.